CVE-2020-3399— Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2020-3399
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient input validation during CAPWAP packet processing. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device, resulting in a buffer over-read. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
缓冲区上溢读取
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XE Cisco Catalyst 9800 Series Wireless Controllers 存在缓冲区错误漏洞，该漏洞源于无线接入点（CAPWAP）协议处理和控制中的漏洞在CAPWAP数据包处理期间输入验证不足所致。攻击者可利用该漏洞通过将精心制作的CAPWAP数据包发送到受影响的设备。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco IOS XE Software | n/a | - |
II. Public POCs for CVE-2020-3399
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2020-3399
请登录查看更多情报信息。
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capwap-dos-ShFzXfvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3399
Same Patch Batch · Cisco · 2020-09-24 · 52 CVEs total
| CVE-2020-3425 | 8.8 HIGH | Cisco IOS XE Software Privilege Escalation Vulnerabilities |
| CVE-2020-3141 | 8.8 HIGH | Cisco IOS XE Software Privilege Escalation Vulnerabilities |
| CVE-2020-3421 | 8.6 HIGH | Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities |
| CVE-2020-3480 | 8.6 HIGH | Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities |
| CVE-2020-3426 | 7.5 HIGH | Cisco IOS Software for Cisco Industrial Routers Virtual-LPWA Unauthorized Access Vulnera |
| CVE-2020-3465 | 7.4 HIGH | Cisco IOS XE Software Ethernet Frame Denial of Service Vulnerability |
| CVE-2020-3508 | 7.4 HIGH | Cisco IOS XE Software for Cisco ASR 1000 Series 20-Gbps Embedded Services Processor IP ARP |
| CVE-2020-3396 | 6.8 MEDIUM | Cisco IOS XE Software IOx Guest Shell USB SSD Namespace Protection Privilege Escalation Vu |
| CVE-2020-3417 | 6.8 MEDIUM | Cisco IOS XE Software Arbitrary Code Execution Vulnerability |
| CVE-2020-3416 | 6.7 MEDIUM | Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Exe |
| CVE-2020-3513 | 6.7 MEDIUM | Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Exe |
| CVE-2020-3479 | 6.1 MEDIUM | Cisco IOS and IOS XE Software MP-BGP EVPN Denial of Service Vulnerability |
| CVE-2020-3503 | 6.0 MEDIUM | Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability |
| CVE-2020-3393 | 6.0 MEDIUM | Cisco IOS XE Software IOx Application Hosting Privilege Escalation Vulnerability |
| CVE-2020-3423 | 5.1 MEDIUM | Cisco IOS XE Software Arbitrary Code Execution Vulnerability |
| CVE-2020-3475 | 4.3 MEDIUM | Cisco IOS XE Software Web Management Framework Vulnerabilities |
| CVE-2020-3474 | 4.3 MEDIUM | Cisco IOS XE Software Web Management Framework Vulnerabilities |
| CVE-2020-3476 | Cisco IOS XE Software Arbitrary File Overwrite Vulnerability | |
| CVE-2020-3428 | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family WLAN Local Profilin | |
| CVE-2020-3422 | Cisco IOS XE Software IP Service Level Agreements Denial of Service Vulnerability |
Showing top 20 of 52 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
V. Comments for CVE-2020-3399
No comments yet